Coffee-making apparatus.



vA. MINTZ.

COFFEE MAKING APPARATUS. APPLlcATloN man :une 15. 191s.

1,167,199. Patented Jan. 4,1916.

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` INVENTOR COLUMBIA PLANOGRAPH Co.,WAsH|NuruN. D. c.

UN SA sPArENT OFFICE., i

ALE-X MINTZ, or NEW YORK, NYY. f v

COFFEE-MAKING Ai?lantaarn-s.

. Application filed .Tune 1,5., 1915.v

To, all whom t may concern Be it known that I, ALEX MINTZ, acitizen.

a simple, inexpensiveand eficient coffee-- Y making apparatus in which the coffee-pots are heated by water confined in an annular jacket at the bottom of the boiler, and which water is caused to circulate about the coecpots to maintain the same hot.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, theV invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings, forming part of the application, similar characters of reference indicate corresponding parts in all the views. l

Figure l is an elevation, partly in section, of a coffee-making apparatus embodying my invention; Fig. 2 is a horizontal section on line 2 2, Fig. l; and Fig. 8 is a vertical section on line 3 3, Fig. 2, showing only the water-jacket at the bottom of the boiler.

Referring to the drawings, 4 represents a vertical boiler of customary construction,

the bottom of which is preferably formed by a casting 5 having an annular waterjacket 6. rThe boiler, if desired, can be provided with an independent bottom, and the annular water-jacket 6 can be secured thereto by any suitable means. It will be noted that the water in the boiler 4 is heated directly in the central part of the bottom of the boiler by a burner 7, the flame of which contacts directly with the central part of the casting. A conduit 8 controls the supply of water from the main to the boiler. A valvecontrolled conduit 9 connects the boiler with the annular jacket 6 whereby the same is maintained filled with water. The jacket is in turn connected to coffee-pots 10 by va Specification of Letters Patent'.

. tively small capacity,

ratentedaan. a, i916. Serial N o. 34,228.

valve conduit vl1 andafconduit12 above the i' 1 conduit 1l. By means of the conduit .1l the' water from the;A

coffee-pot ycan bev filledy with boiler 4 through the jacket 6., The conduitv l2 connectsV the upper portion of the coffeepot with' the conduits ll are opened, a circulation of hot water 1s established from thejacket through the coffee-pots about the coffee urns or containers 13. A valve-controlledconduit 14 is provided 'from the boiler to the urns to supply boiling water from the boiler to the urns.

It is self-evident coffee-pots l0 with hot water from the boiler through the jacket by `means of the valve-` controlled conduit 9, the same is closed and the heat supplied to the boiler is also supplied to the water-jacket 6, and, thus, a hotwater circulation vis established through the coifee-pots connected With the jacket, whereby the coffee can be maintained hot without applying heat directlyto the coffee-pots, as is customary at present. s By this means only one single burner is utilized to maintain several coffee-pots'hot. The annular jacket 6 at the-bottom of the boiler, being of comparagets hot quickly and facilitates the circulation of hot water from the coffeepots through the jacket. The water-jacket 6 at the bottom of the boiler can also be utilized as an accelerator for boiling the water in the boiler by closing the valve conduits 11 and by-opening the lvalve conduit 9. This' will increase the heating surface of the boiler, as the water in the jacket will cirjacket g, and when the water inv the jacketisheated and thevalve-controlled that after filling the Y sar bottom of the boiler and the jacket thereof,

a coee-pot associated with the boiler, a valve-controlled conduit connecting the jacket to the bottom of the pot, a conduit connecting the top of the a valve-controlled conduit connecting the boiler to the jacket, a coffee container in said pot, and means for supplying water from the boiler to the container.

2. In a coffee-making apparatus, the combination of a boiler having an annular water-jacket below the bottom, a burner, the flame of which is adapted to contact with the bottom of the boiler and the jacket therepotito the jacket, f

at, a valve-controlled conduit connecting the jacket and the boiler, a coffee-pot, a valvecontrolled conduit from the jacket to the bottom of the pot, a conduit connecting the jacket to the pot at a point above the valvecontrolled conduit which connects the jacket to the pot, a coee container in said pot, and a valve-controlled conduit for supplying the container with water from the boiler.

3. ln a coffee-making apparzxtus7 the combination of a boiler having a water jacket positioned below the bottom, a burner, the flame of which is adapted to engage the bottom of the boiler and the water-jacket thereat, a valve-controlled conduit from the boiler to the Water-j acket, a ooEee-pot7 a Copies of this patent may be obtained for ve cents each, by addressing the coffee containei` in the pot, a valve-controlled conduit Jor supplying water `rom the boiler to the container7 a valve-controlled conduit from the water-jacket to the pot, and a second conduit from the waterjacket to the pot connecting the two at points above the connection therebetween produced by the valve-controlled conduit.

1n testimony whereof have signed my name to this speciication in the presence of two subscribing witnesses.

ALEX MINTZ.

Witnesses B. Jorrn, PHILIP D. RoLLHAUs.

Commissioner of Patents.

Washington, D. C. 

